@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Manrope:wght@400;500;600;650;700;800&display=swap");
:root {
  --nav: #243c50;
  --nav-light: #344f64;
  --ink: #263b47;
  --muted: #85918f;
  --teal: #357e75;
  --line: #e2e6e2;
  --paper: #fffefa;
  --bg: #f7f8f4;
  --notebook-accent: #91c3b7;
  --font: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  font-size: 14px;
}
button,
input,
select,
textarea {
  font: inherit;
}
button {
  cursor: pointer;
  border: 0;
  background: none;
  color: inherit;
}
button,
input,
select,
textarea {
  outline-offset: 4px;
}
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--teal);
}
button:disabled {
  opacity: 0.35;
  cursor: default;
}
button {
  transition:
    background 0.15s,
    color 0.15s,
    box-shadow 0.15s;
}
svg {
  width: 21px;
  height: 21px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.65;
  stroke-linecap: round;
  stroke-linejoin: round;
}
i {
  display: inline-flex;
  font-style: normal;
  flex-shrink: 0;
}
[hidden] {
  display: none !important;
}

/* The installed app requires an account. Keep the workspace out of view until
   Supabase has restored a valid desktop session. */
.desktop-auth-pending .tabbar,
.desktop-auth-pending #library,
.desktop-auth-pending #editor {
  visibility: hidden;
}

.desktop-auth-pending body {
  background: #edf1ec;
}

.desktop-auth-pending .auth-dialog #closeAuth {
  display: none;
}
.tabbar {
  view-transition-name: folio-navigation;
}
.library,
.editor {
  view-transition-name: folio-surface;
}
::view-transition-group(folio-navigation) {
  animation-duration: 240ms;
  animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
}
::view-transition-group(folio-surface) {
  animation-duration: 380ms;
  animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
}
html[data-transition="open"]::view-transition-old(folio-surface) {
  animation: folio-surface-out 260ms cubic-bezier(0.4, 0, 1, 1) both;
}
html[data-transition="open"]::view-transition-new(folio-surface) {
  animation: folio-surface-in 380ms cubic-bezier(0.22, 1, 0.36, 1) both;
}
html[data-transition="library"]::view-transition-old(folio-surface) {
  animation: folio-surface-out-reverse 260ms cubic-bezier(0.4, 0, 1, 1) both;
}
html[data-transition="library"]::view-transition-new(folio-surface) {
  animation: folio-surface-in-reverse 380ms cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes folio-surface-out {
  to {
    opacity: 0;
    transform: translateX(-8px) scale(0.992);
    filter: blur(1.5px);
  }
}
@keyframes folio-surface-in {
  from {
    opacity: 0;
    transform: translateX(13px) scale(0.994);
    filter: blur(1.5px);
  }
}
@keyframes folio-surface-out-reverse {
  to {
    opacity: 0;
    transform: translateX(8px) scale(0.992);
    filter: blur(1.5px);
  }
}
@keyframes folio-surface-in-reverse {
  from {
    opacity: 0;
    transform: translateX(-13px) scale(0.994);
    filter: blur(1.5px);
  }
}
.surface-enter {
  animation: folio-fallback-in 350ms cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes folio-fallback-in {
  from {
    opacity: 0;
    transform: translateY(5px) scale(0.996);
  }
}
.notebook-switch-settle .desk-column,
.notebook-switch-settle .pages-rail {
  animation: notebook-content-settle 160ms ease-out both;
}
@keyframes notebook-content-settle {
  from {
    opacity: 0.72;
  }
  to {
    opacity: 1;
  }
}
.tabbar {
  height: 57px;
  display: flex;
  align-items: center;
  background: var(--nav);
  color: #d8e1e6;
  padding: 0 22px;
  gap: 18px;
  transition: box-shadow 0.2s ease;
}
.notebook-open .tabbar {
  box-shadow: inset 0 3px var(--notebook-accent);
}
.brand {
  display: flex;
  align-items: center;
  font-family: "Manrope", var(--font);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -1px;
  color: white;
  padding: 0 25px 0 0;
}
.brand-mark svg {
  width: 26px;
  height: 29px;
  stroke-width: 1.4;
}
.brand-dot {
  color: var(--notebook-accent);
  transition: color 0.2s ease;
}
.notebook-tabs {
  display: flex;
  align-self: stretch;
  align-items: end;
  gap: 5px;
  overflow-x: auto;
  scrollbar-width: none;
}
.notebook-tab {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 44px;
  padding: 0 17px;
  border-radius: 8px 8px 0 0;
  color: #becbd4;
  min-width: 140px;
  max-width: 230px;
  flex-shrink: 0;
}
.notebook-tab.active {
  background: var(--nav-light);
  background: color-mix(
    in srgb,
    var(--nav-light) 82%,
    var(--notebook-accent) 18%
  );
  color: white;
  box-shadow: inset 0 -3px var(--notebook-accent);
}
.notebook-tab > button:first-child {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 0;
  text-align: left;
  flex: 1;
  font-size: 12px;
}
.tab-close {
  padding: 3px;
  opacity: 0.6;
}
.tab-close:hover {
  opacity: 1;
}
.tab-close svg {
  width: 13px;
  height: 13px;
}
.icon-button {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 7px;
  flex-shrink: 0;
}
.icon-button:hover {
  background: #80968a16;
}
.tab-add {
  align-self: flex-end;
  width: 36px;
  height: 44px;
  border-radius: 8px 8px 0 0;
  color: #bccbd2;
}
.tab-add:hover {
  background: #ffffff12;
}
.account-button {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-left: auto;
  padding: 0 11px;
  border: 1px solid #ffffff20;
  border-radius: 8px;
  color: #d6e0e4;
  font-size: 10px;
  font-weight: 650;
  white-space: nowrap;
}
.account-button:hover {
  border-color: #ffffff38;
  background: #ffffff0d;
}
.account-button svg {
  width: 15px;
  height: 15px;
}
.app-caption {
  margin-left: 0;
  font-size: 9px;
  letter-spacing: 1.8px;
  color: #9dadb8;
  white-space: nowrap;
}
.library {
  max-width: 1260px;
  margin: auto;
  padding: 52px 58px 0;
}
.library-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.eyebrow {
  font-size: 9px;
  font-weight: 650;
  letter-spacing: 1.7px;
  color: var(--muted);
}
.local-note {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  color: var(--muted);
}
.local-note svg {
  width: 15px;
  height: 15px;
}
.library-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 36px 0 49px;
}
.library h1 {
  font-family: "Manrope", var(--font);
  font-weight: 500;
  font-size: 48px;
  line-height: 1.2;
  letter-spacing: -2.1px;
  margin: 0 0 20px;
}
.library-heading p {
  font-size: 13px;
  color: #7d8987;
  margin: 0;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 15px;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 550;
  white-space: nowrap;
  min-height: 36px;
}
.button svg {
  width: 17px;
  height: 17px;
}
.primary {
  color: #fff;
  background: var(--teal);
}
.primary:hover {
  background: #2b6c64;
}
.library-heading .primary {
  padding: 13px 19px;
}
.library-section {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line);
  padding: 27px 0 24px;
}
.library-section h2 {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 6px;
}
.library-section h2 span {
  font-size: 11px;
  color: var(--muted);
  font-weight: 400;
  margin-left: 8px;
}
.library-section p {
  font-size: 11px;
  color: var(--muted);
  margin: 0;
}
.library-sort {
  font-size: 11px;
  color: #8d9691;
  display: flex;
  gap: 7px;
  align-items: center;
}
.library-sort svg {
  width: 14px;
  height: 14px;
}
.notebook-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 29px;
  min-height: 285px;
}
.notebook-card {
  text-align: left;
  width: 100%;
  padding: 0;
}
.book-cover {
  height: 235px;
  border-radius: 3px 10px 10px 3px;
  position: relative;
  overflow: hidden;
  background: var(--cover);
  color: #fff;
  box-shadow:
    2px 7px 12px #20332710,
    inset 5px 0 4px #0000000b;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
}
.book-cover:before {
  content: "";
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: #ffffff20;
  box-shadow: 1px 0 #0000000b;
}
.book-cover:after {
  content: "";
  position: absolute;
  right: 15px;
  top: 0;
  bottom: 0;
  width: 5px;
  background: #00000012;
  box-shadow: 1px 0 #ffffff13;
}
.notebook-card:hover .book-cover {
  transform: translateY(-4px);
  box-shadow: 2px 12px 20px #20332720;
}
.cover-content {
  position: relative;
  height: 100%;
  padding: 31px 28px;
  display: flex;
  flex-direction: column;
  align-items: start;
}
.cover-kicker {
  font-size: 8px;
  letter-spacing: 2px;
  opacity: 0.65;
}
.cover-title {
  font-family: "Manrope", var(--font);
  font-size: 24px;
  line-height: 1.3;
  font-weight: 500;
  letter-spacing: -0.6px;
  overflow-wrap: anywhere;
  margin-top: 21px;
  max-width: 150px;
}
.cover-rule {
  width: 24px;
  height: 1px;
  background: #ffffff65;
  margin-top: 18px;
}
.cover-bottom {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  font-size: 8px;
  letter-spacing: 1.5px;
  opacity: 0.6;
}
.cover-bottom svg {
  width: 22px;
  height: 22px;
}
.notebook-meta {
  padding: 15px 2px 0;
}
.notebook-meta h3 {
  font-size: 12px;
  font-weight: 550;
  margin: 0 0 6px;
}
.notebook-meta p {
  font-size: 10px;
  color: var(--muted);
  margin: 0;
}
.new-book {
  height: 235px;
  border: 1px dashed #cdd5ce;
  border-radius: 5px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: #8c9991;
  font-size: 11px;
}
.new-book > span {
  height: 38px;
  width: 38px;
  border: 1px solid #dde3dc;
  border-radius: 50%;
  display: grid;
  place-items: center;
}
.new-book:hover {
  background: #edf1e9;
  border-color: #aabdad;
}
.library-footer {
  display: flex;
  gap: 15px;
  align-items: center;
  padding: 36px 0;
  margin-top: 52px;
  border-top: 1px solid var(--line);
}
.footer-mark {
  color: #94a49b;
}
.footer-mark svg {
  width: 29px;
  height: 29px;
}
.library-footer p {
  font-size: 11px;
  line-height: 1.8;
  color: #6a7b71;
  margin: 0;
}
.library-footer p span {
  font-size: 10px;
  color: #99a29c;
}
.footer-label {
  margin-left: auto;
  font-size: 8px;
  letter-spacing: 1.5px;
  color: #a0a8a2;
}
.editor {
  height: calc(100dvh - 57px);
  display: flex;
  flex-direction: column;
}
.document-bar {
  height: 62px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 22px;
  border-bottom: 1px solid var(--line);
  gap: 12px;
  flex-shrink: 0;
}
.document-info,
.document-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.divider {
  height: 23px;
  width: 1px;
  background: #dfe4e1;
  display: block;
  flex-shrink: 0;
}
.document-name {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  font-weight: 550;
  min-width: 0;
}
.document-name span {
  max-width: 220px;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}
.document-name svg {
  height: 13px;
  width: 13px;
  color: #94a19d;
}
.save-status {
  font-size: 10px;
  color: #97a39d;
  white-space: nowrap;
}
.quiet:hover {
  background: #edf1ed;
}
.check-button {
  color: var(--teal);
  background: #edf5f1;
}
.check-button:hover {
  background: #deeee7;
}
.mark-button {
  color: #40596b;
  border: 1px solid #d9e1e3;
  background: #f7f9f8;
}
.mark-button:hover {
  background: #eaf0f2;
}
.tutor-button {
  background: var(--nav);
  color: white;
}
.tutor-button:hover {
  background: var(--nav-light);
}
.editor-body {
  display: flex;
  flex: 1;
  min-height: 0;
  position: relative;
}
.pages-rail {
  width: 163px;
  flex-shrink: 0;
  background: #f9faf7;
  border-right: 1px solid #dfe4de;
  padding: 25px 20px 18px;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  opacity: 1;
  transform: translateX(0);
  transition:
    width 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    padding 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.18s ease,
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.18s ease;
}
.pages-rail.collapsed {
  width: 0;
  padding-left: 0;
  padding-right: 0;
  border-right-color: transparent;
  opacity: 0;
  transform: translateX(-12px);
  pointer-events: none;
}
#togglePages svg {
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}
#togglePages.collapsed svg {
  transform: translateX(2px);
}
.rail-heading {
  display: flex;
  justify-content: space-between;
  color: #89968e;
  font-size: 9px;
  letter-spacing: 1.5px;
  margin-bottom: 23px;
}
.rail-heading span:last-child {
  letter-spacing: 0;
}
.page-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.page-thumb {
  padding: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  color: #8b978f;
}
.thumb-sheet {
  height: 153px;
  width: 109px;
  background: var(--paper);
  border: 1px solid #e0e4dc;
  box-shadow: 0 3px 6px #23362906;
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}
.page-thumb.active .thumb-sheet {
  outline: 2px solid var(--teal);
  outline-offset: 4px;
}
.page-thumb.active {
  color: var(--teal);
}
.thumb-sheet canvas {
  width: 100%;
  height: 100%;
  display: block;
}
.add-page {
  border: 1px dashed #d0d9cf;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  font-size: 10px;
  color: #829187;
  padding: 10px 0;
  margin: 22px 0;
}
.add-page svg {
  width: 13px;
  height: 13px;
}
.add-page:hover {
  background: #eef2e9;
}
.paper-control {
  margin-top: auto;
  padding-top: 30px;
}
.paper-control label {
  font-size: 8px;
  letter-spacing: 1.3px;
  color: #98a299;
}
.paper-control select {
  width: 100%;
  margin-top: 10px;
  font-size: 10px;
  padding: 8px 4px;
  border: 1px solid #dfe5db;
  border-radius: 4px;
  background: transparent;
  color: #758278;
}
.desk-column {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: #e9ede8;
  position: relative;
}
.tools-dock {
  display: flex;
  align-items: center;
  flex-direction: column;
  padding: 19px 12px 11px;
  z-index: 5;
  flex-shrink: 0;
}
.toolbar {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 10px;
  background: #fcfdfa;
  border: 1px solid #d9dfd6;
  box-shadow: 0 3px 10px #31453407;
  border-radius: 12px;
  max-width: 100%;
}
.tool-set {
  display: flex;
  gap: 3px;
}
.tool {
  width: 37px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  color: #62746a;
  position: relative;
}
.tool[data-tool="pen"]::after,
.tool[data-tool="highlighter"]::after {
  content: "";
  position: absolute;
  right: 4px;
  bottom: 5px;
  width: 4px;
  height: 4px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg);
  opacity: 0.7;
}
.tool svg {
  height: 23px;
  width: 23px;
  stroke-width: 1.5;
}
.tool:hover {
  background: #edf2eb;
}
.tool.active {
  color: var(--teal);
  background: #dcece3;
}
.width-options {
  display: flex;
  gap: 2px;
}
.width-button {
  height: 32px;
  width: 29px;
  border-radius: 5px;
  display: grid;
  place-items: center;
}
.width-button span {
  width: 16px;
  border-radius: 6px;
  background: #738276;
}
.width-button.active {
  background: #e8ede5;
}
.color-options {
  display: flex;
  gap: 11px;
  padding: 0 7px;
}
.ink-color {
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--color);
  border: 1px solid #00000008;
  position: relative;
}
.ink-color.active:after {
  content: "";
  position: absolute;
  inset: -4px;
  border: 1px solid #778c7b;
  border-radius: 50%;
}
.tool-hint {
  font-size: 10px;
  letter-spacing: 0.2px;
  color: #97a294;
  height: 22px;
  padding-top: 10px;
}
.tool-settings-popover {
  position: absolute;
  top: 76px;
  left: var(--tool-popover-left, 12px);
  z-index: 30;
  width: min(320px, calc(100vw - 24px));
  padding: 14px;
  border: 1px solid #d8e1d9;
  border-radius: 12px;
  background: #fffefa;
  box-shadow: 0 18px 45px #243c5028;
  transform-origin: var(--tool-popover-arrow-left, 28px) top;
  animation: tool-settings-in 160ms cubic-bezier(0.22, 1, 0.36, 1) both;
}
.tool-settings-popover::before {
  content: "";
  position: absolute;
  top: -7px;
  left: var(--tool-popover-arrow-left, 28px);
  width: 13px;
  height: 13px;
  border-top: 1px solid #d8e1d9;
  border-left: 1px solid #d8e1d9;
  background: #fffefa;
  transform: translateX(-50%) rotate(45deg);
}
@keyframes tool-settings-in {
  from {
    opacity: 0;
    transform: translateY(-5px) scale(0.985);
  }
}
.tool-settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 11px;
}
.tool-settings-header h3 {
  margin: 2px 0 0;
  font-family: "Manrope", var(--font);
  font-size: 16px;
  font-weight: 550;
}
.pen-style-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-bottom: 12px;
}
.pen-style {
  min-height: 58px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid #e1e6df;
  border-radius: 9px;
  color: #718078;
  font-size: 9px;
}
.pen-style:hover,
.pen-style.active {
  border-color: #bfd5ca;
  background: #edf5f0;
  color: var(--teal);
}
.pen-sample {
  display: block;
  width: 33px;
  height: 9px;
  border-bottom: 2px solid currentColor;
  border-radius: 50%;
  transform: rotate(-8deg);
}
.pen-sample.ball {
  height: 2px;
  border-radius: 999px;
  transform: none;
}
.pen-sample.brush {
  height: 10px;
  border-bottom-width: 4px;
  transform: rotate(6deg) skewX(-20deg);
}
.tool-setting-row {
  display: block;
  padding: 9px 2px;
  border-top: 1px solid #e8ece7;
}
.tool-setting-row > span {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  color: #718078;
  font-size: 10px;
  font-weight: 550;
}
.tool-setting-row output {
  color: #98a39b;
  font-weight: 450;
}
.tool-setting-row input[type="range"] {
  width: 100%;
  accent-color: var(--teal);
}
.highlighter-preview {
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 8px;
  border-radius: 9px;
  background: #f6f7f1;
}
.highlighter-preview span {
  width: 70%;
  height: 14px;
  border-radius: 4px;
  background: rgb(181 146 67 / var(--highlighter-opacity, 0.25));
  transform: rotate(-2deg);
}
.setting-toggle {
  display: flex;
  align-items: center;
  gap: 9px;
  padding-top: 13px;
  border-top: 1px solid #e8ece7;
  color: #718078;
  font-size: 10px;
}
.setting-toggle input {
  accent-color: var(--teal);
}
.viewport {
  flex: 1;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-color: #c3cdc2 transparent;
  scrollbar-width: thin;
  touch-action: none;
}
.page-stage {
  position: relative;
  margin: 10px auto 45px;
  flex-shrink: 0;
}
.paper {
  width: 850px;
  height: 1100px;
  transform-origin: top left;
  background: var(--paper);
  position: relative;
  box-shadow: 0 3px 18px #2f45351a;
  border-radius: 1px;
  isolation: isolate;
}
.paper canvas {
  display: block;
  touch-action: none;
}
.walkthrough-layer {
  position: absolute;
  inset: 0;
  z-index: 7;
  pointer-events: none;
}
.tutor-ink-step {
  position: absolute;
  width: max-content;
  max-width: 650px;
  display: flex;
  align-items: flex-start;
  gap: 9px;
  color: #315f59;
  animation: tutor-ink-arrive 0.38s ease-out both;
}
.tutor-ink-step.current .tutor-ink-line {
  opacity: 1;
}
.tutor-ink-line {
  position: relative;
  display: inline-block;
  width: max-content;
  max-width: 430px;
  min-height: 48px;
  padding: 2px 4px;
  font-family: "Segoe Print", "Bradley Hand", "Comic Sans MS", cursive;
  font-size: 21px;
  line-height: 1.25;
  transform: rotate(var(--ink-tilt, 0deg));
  transform-origin: left center;
  opacity: 0.92;
}
.tutor-ink-step.writing .tutor-ink-line {
  clip-path: inset(0 100% 0 0);
  animation: handwrite-reveal var(--write-duration, 1.8s)
    cubic-bezier(0.35, 0.05, 0.2, 1) forwards;
}
.tutor-ink-line::after {
  content: "";
  position: absolute;
  top: 55%;
  left: 0;
  width: 7px;
  height: 2px;
  border-radius: 999px;
  background: #315f59;
  box-shadow: 0 0 0 2px #fffefa99;
  transform: rotate(-42deg);
  opacity: 0;
}
.tutor-ink-step.writing .tutor-ink-line::after {
  animation: tutor-pen var(--write-duration, 1.8s)
    cubic-bezier(0.35, 0.05, 0.2, 1) forwards;
}
.tutor-ink-line .katex-display {
  margin: 0;
  text-align: left;
}
.tutor-ink-line .katex,
.tutor-ink-line .katex * {
  font-family:
    "Segoe Print", "Bradley Hand", "Comic Sans MS", cursive !important;
  font-weight: 500;
}
.tutor-ink-note {
  width: 340px;
  margin: 0;
  padding: 12px 14px;
  border-left: 2px solid #70a99e;
  border-radius: 0 7px 7px 0;
  background: #f6fbf8ed;
  box-shadow: 0 5px 16px #345c4d14;
}
.tutor-ink-step.writing .tutor-ink-note {
  opacity: 0;
  animation: tutor-note-arrive 0.3s ease-out var(--write-duration, 1.8s)
    forwards;
}
.tutor-ink-step.stack-note {
  flex-direction: column;
  gap: 2px;
}
.tutor-ink-step.stack-note .tutor-ink-note {
  margin-left: 18px;
}
.tutor-ink-note > span {
  color: #4a8a7d;
  font-size: 10.5px;
  font-weight: 750;
  letter-spacing: 1px;
}
.tutor-ink-note p {
  margin: 5px 0 0;
  color: #64786c;
  font-size: 14px;
  line-height: 1.55;
}
@keyframes tutor-ink-arrive {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}
@keyframes handwrite-reveal {
  to {
    clip-path: inset(0 0 0 0);
  }
}
@keyframes tutor-pen {
  0% {
    left: 0;
    opacity: 0;
  }
  8%,
  92% {
    opacity: 1;
  }
  100% {
    left: calc(100% - 7px);
    opacity: 0;
  }
}
@keyframes tutor-note-arrive {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.error-pins {
  position: absolute;
  inset: 0;
  z-index: 8;
  pointer-events: none;
}
.error-annotation {
  position: absolute;
  width: 34px;
  height: 34px;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(var(--annotation-scale, 1));
  transform-origin: center;
  animation: annotation-arrive 0.32s ease-out both;
}
.error-annotation.dismissed {
  pointer-events: none;
  animation: annotation-dismiss 0.2s ease-in both;
}
.error-pin {
  position: relative;
  z-index: 2;
  pointer-events: auto;
  background: #bb6d50;
  color: #fff;
  border: 3px solid var(--paper);
  box-shadow: 0 1px 7px #6d351822;
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
}
.error-pin:hover {
  background: #9a543a;
}
.hint-annotation .error-pin {
  background: var(--teal);
  font-size: 15px;
}
.hint-annotation .error-pin:hover {
  background: #286a62;
}
.hint-annotation .error-note {
  border-color: #cfe1db;
  background: #fbfefa;
}
.hint-annotation .error-note::before {
  background: #6ca79d;
}
.hint-annotation .error-note-label {
  color: var(--teal);
}
.hint-annotation .error-note:hover,
.hint-annotation .error-note:focus-visible {
  border-color: #91bdb3;
  background: #f7fcf9;
}
.hint-annotation .error-note-close:hover,
.hint-annotation .error-note-close:focus-visible {
  background: #e5f2ed;
  color: #286a62;
}
.error-annotation.resolved .error-pin {
  background: #4f8b70;
}
.error-annotation.resolved .error-note {
  border-color: #bcd8c9;
  background: #f8fcf8;
}
.error-annotation.resolved .error-note-label {
  color: #3f7e63;
}
.error-note {
  position: absolute;
  left: 46px;
  top: -7px;
  width: 320px;
  padding: 12px 38px 12px 14px;
  pointer-events: auto;
  text-align: left;
  border: 1px solid #ead8cf;
  border-radius: 9px;
  background: #fffdf9;
  color: #5f6f65;
  box-shadow: 0 8px 24px #563a2920;
  cursor: pointer;
}
.error-note-close {
  position: absolute;
  top: 7px;
  right: 7px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: #8c9891;
  font: 500 18px/1 var(--font);
  cursor: pointer;
}
.error-note-close:hover,
.error-note-close:focus-visible {
  background: #f4e8e2;
  color: #9a543a;
  outline: none;
}
.error-note::before {
  content: "";
  position: absolute;
  right: 100%;
  top: 22px;
  width: 16px;
  height: 1px;
  background: #c98b73;
}
.error-annotation.align-left .error-note {
  left: auto;
  right: 46px;
}
.error-annotation.align-left .error-note::before {
  right: auto;
  left: 100%;
}
.error-annotation.stacked .error-note {
  left: 50%;
  top: 46px;
  transform: translateX(-50%);
}
.error-annotation.stacked .error-note::before {
  right: auto;
  left: 50%;
  top: auto;
  bottom: 100%;
  width: 1px;
  height: var(--connector-height, 14px);
}
.error-note-label,
.error-note-message {
  display: block;
}
.error-note-label {
  color: #ad644c;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.45px;
  text-transform: uppercase;
}
.error-note-message {
  margin-top: 5px;
  font-size: 13px;
  font-weight: 450;
  line-height: 1.45;
  overflow-wrap: anywhere;
}
.error-note-message .katex {
  font-size: 1.08em;
}
.error-note:hover,
.error-note:focus-visible {
  border-color: #d8aa98;
  background: #fffaf5;
  outline: none;
}
.recheck-issue {
  margin-top: 11px;
  padding: 7px 10px;
  border: 1px solid #cbded5;
  border-radius: 7px;
  color: var(--teal);
  font-size: 9.5px;
  font-weight: 700;
}
.recheck-issue:hover {
  border-color: #8ebbb0;
  background: #edf6f2;
}
.recheck-issue:disabled {
  cursor: wait;
  opacity: 0.6;
}
.feedback-error.resolved {
  border-color: #cfe1d6;
  background: #f8fbf8;
}
.feedback-error.resolved .error-label {
  color: #4f8b70;
}
.feedback-error.recheck-needed {
  animation: recheck-pulse 0.38s ease-out;
}
@keyframes recheck-pulse {
  50% {
    background: #fff6f1;
  }
}
@keyframes annotation-arrive {
  from {
    opacity: 0;
    transform: translate(-50%, -42%) scale(var(--annotation-scale, 1));
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%) scale(var(--annotation-scale, 1));
  }
}
@keyframes annotation-dismiss {
  to {
    opacity: 0;
    transform: translate(-50%, -45%)
      scale(calc(var(--annotation-scale, 1) * 0.94));
  }
}
.selection {
  position: absolute;
  border: 1.5px dashed var(--teal);
  background: #357e750d;
  pointer-events: none;
}
.selection:before {
  content: "Selected region";
  position: absolute;
  top: -25px;
  left: -1px;
  color: white;
  background: var(--teal);
  font-size: 10px;
  padding: 4px 8px;
  border-radius: 4px 4px 0 0;
  white-space: nowrap;
}
.workspace-bottom {
  height: 46px;
  padding: 0 23px;
  display: flex;
  align-items: center;
  gap: 21px;
  background: #e9ede8;
  flex-shrink: 0;
  color: #8c998d;
}
.workspace-bottom > span {
  font-size: 9px;
  letter-spacing: 1.1px;
}
.subtle-button {
  font-size: 10px;
  display: flex;
  gap: 6px;
  align-items: center;
  color: #97a095;
}
.subtle-button svg {
  width: 13px;
  height: 13px;
}
.subtle-button:hover {
  color: #9a543a;
}
.zoom-controls {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
  background: #f9fbf7;
  border: 1px solid #dce3d8;
  border-radius: 6px;
  padding: 2px 4px;
}
.zoom-controls button {
  height: 27px;
  min-width: 27px;
  display: grid;
  place-items: center;
  font-size: 10px;
  color: #687a6e;
  border-radius: 4px;
}
.zoom-controls button:hover {
  background: #e8eee3;
}
.zoom-controls svg {
  width: 15px;
  height: 15px;
}
.zoom-controls .divider {
  height: 15px;
  margin: 0 3px;
}
.tutor-panel {
  width: 326px;
  background: #fff;
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: width 0.22s ease;
}
.tutor-panel.progress-mode {
  width: 410px;
}
.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px 23px 21px;
}
.panel-heading .eyebrow {
  font-size: 8px;
  letter-spacing: 1.3px;
}
.panel-heading h2 {
  font-family: "Manrope", var(--font);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.7px;
  margin: 9px 0 0;
}
.panel-heading .icon-button {
  color: #99a59d;
}
.panel-tabs {
  display: flex;
  gap: 24px;
  padding: 0 23px;
  border-bottom: 1px solid var(--line);
}
.panel-tabs button {
  padding: 0 0 13px;
  font-size: 11px;
  color: #91a096;
  border-bottom: 2px solid transparent;
}
.panel-tabs button.active {
  border-color: var(--teal);
  color: var(--teal);
}
.panel-content {
  padding: 24px 23px;
  overflow-y: auto;
  flex: 1;
  line-height: 1.7;
  font-size: 12px;
}
.empty-tutor {
  padding: 17px 0 29px;
}
.empty-tutor .tutor-glyph {
  width: 45px;
  height: 45px;
  border-radius: 12px;
  background: #f0f5ed;
  display: grid;
  place-items: center;
  color: var(--teal);
  margin-bottom: 22px;
}
.empty-tutor h3 {
  font-family: "Manrope", var(--font);
  font-size: 20px;
  line-height: 1.4;
  font-weight: 500;
  letter-spacing: -0.5px;
  margin: 0 0 13px;
}
.empty-tutor p {
  color: #88958c;
  font-size: 12px;
  line-height: 1.8;
}
.tutor-tip {
  border-top: 1px solid var(--line);
  margin-top: 25px;
  padding-top: 17px;
  font-size: 10px;
  color: #94a096;
}
.hint-button {
  width: 100%;
  border: 1px solid #d7e3d8;
  color: var(--teal);
  margin-top: 14px;
}
.hint-button:hover {
  background: #f3f7ef;
}
.walkthrough-button {
  width: 100%;
  margin-top: 9px;
  border: 1px solid #29495e;
  background: #29495e;
  color: white;
}
.walkthrough-button:hover {
  background: #1f3d51;
}
.walkthrough-status {
  color: #294f63;
}
.walkthrough-position {
  margin: 4px 0 12px;
  color: #3d8075;
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.walkthrough-current {
  border: 1px solid #d5e4dc;
  border-radius: 10px;
  background: #f9fcf9;
  padding: 5px 14px;
}
.walkthrough-current > div {
  padding: 10px 0;
  border-top: 1px solid #e1ebe5;
}
.walkthrough-current > div:first-child {
  border-top: 0;
}
.walkthrough-current strong {
  display: block;
  color: #3f7e63;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.7px;
}
.walkthrough-current p {
  margin: 3px 0 0;
  color: #66786e;
}
.walkthrough-controls {
  display: grid;
  gap: 7px;
  margin-top: 14px;
}
.walkthrough-controls .button {
  width: 100%;
}
.walkthrough-next {
  background: var(--teal);
  color: white;
}
.walkthrough-retry {
  padding: 8px;
  color: #77877e;
  font-size: 10px;
}
.walkthrough-retry:hover {
  color: var(--teal);
}
.mark-annotation .error-pin {
  font-size: 9px;
}
.mark-annotation.earned .error-pin {
  background: #4f8b70;
}
.mark-annotation.earned .error-note {
  border-color: #c9dfd1;
  background: #f9fcf8;
}
.mark-annotation.earned .error-note-label {
  color: #3f7e63;
}
.mark-annotation.lost .error-pin {
  background: #b76349;
}
.mark-annotation.presentation .error-pin {
  background: #a9873f;
}
.mark-annotation.presentation .error-note {
  border-color: #e4d9bc;
  background: #fffdf7;
}
.mark-annotation.presentation .error-note-label {
  color: #92712f;
}
.marking-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  padding: 15px;
  border-radius: 11px;
  background: #263f52;
  color: white;
}
.marking-total span {
  display: block;
  color: #adc0ca;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 1.2px;
}
.marking-total strong {
  display: block;
  margin-top: 5px;
  font:
    600 25px/1 "Manrope",
    var(--font);
}
.marking-total small {
  color: #b8c6ce;
  font-size: 13px;
}
.marking-change {
  color: #e5c1b2;
  font-size: 11px;
}
.marking-change.up {
  color: #a9d5bd;
}
.marking-question {
  margin-top: 13px;
  overflow: hidden;
  border: 1px solid #dce4df;
  border-radius: 11px;
  background: #fff;
  scroll-margin-top: 12px;
}
.marking-question-heading {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 14px;
  text-align: left;
  background: #f7f9f6;
}
.marking-question-heading span,
.marking-rubric span {
  min-width: 0;
}
.marking-question-heading b,
.marking-rubric b {
  display: block;
  color: #40564c;
  font-size: 12px;
}
.marking-question-heading small,
.marking-rubric small {
  display: block;
  margin-top: 2px;
  color: #8a978f;
  font-size: 10.5px;
  line-height: 1.5;
}
.marking-question-heading > strong {
  flex-shrink: 0;
  color: var(--teal);
  font-size: 13px;
}
.marking-intent,
.marking-improvement {
  margin: 0;
  padding: 12px 14px;
  color: #68796f;
  font-size: 13px;
  line-height: 1.55;
}
.marking-basis {
  margin: 0 14px 9px;
  color: #919c95;
  font-size: 11px;
  line-height: 1.55;
}
.marking-rubric {
  border-top: 1px solid #e3e8e4;
}
.marking-rubric > div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid #edf0ed;
}
.marking-rubric > div > strong {
  flex-shrink: 0;
  color: #536b5f;
  font-size: 11px;
}
.marking-improvement {
  background: #fffaf6;
}
.full-marks-answer {
  border-top: 1px solid #e4e9e5;
}
.full-marks-answer summary {
  padding: 12px 14px;
  color: #3c766b;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.full-marks-answer > div {
  overflow-x: auto;
  padding: 4px 14px 14px;
  color: #354b40;
  font-size: 13px;
}
.full-marks-answer .katex-display {
  margin: 0.5em 0;
  text-align: left;
}
.marking-confidence {
  margin: 15px 0 0;
  color: #929d96;
  font-size: 11px;
  line-height: 1.55;
}
.marking-regrade {
  width: 100%;
  margin-top: 12px;
  background: var(--teal);
  color: white;
}
.panel-footer {
  font-size: 9px;
  color: #a2aaa3;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 16px 20px;
  border-top: 1px solid var(--line);
}
.panel-footer svg {
  height: 12px;
  width: 12px;
}
.feedback-status {
  font-size: 9px;
  letter-spacing: 1.3px;
  text-transform: uppercase;
  color: var(--teal);
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 14px;
}
.feedback-status.error {
  color: #b26d50;
}
.feedback-status svg {
  width: 15px;
  height: 15px;
}
.feedback-summary {
  color: #5f7166;
  margin: 0 0 22px;
  font-size: 13px;
  line-height: 1.65;
  white-space: pre-wrap;
}
.feedback-strengths {
  margin: 0 0 8px;
  padding: 14px 15px 8px;
  border: 1px solid #d4e4db;
  border-radius: 10px;
  background: #f8fcf8;
}
.feedback-strengths h4 {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 0 0 5px;
  color: #3f7e63;
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.feedback-strengths h4 svg {
  width: 14px;
  height: 14px;
}
.feedback-strength {
  padding: 10px 0;
  border-top: 1px solid #deebe4;
}
.feedback-strength:first-of-type {
  border-top: 0;
}
.feedback-strength strong {
  display: block;
  margin-bottom: 4px;
  color: #4f7865;
  font-size: 10px;
}
.feedback-strength p {
  margin: 0;
  color: #6b7d72;
  font-size: 12.5px;
  line-height: 1.55;
}
.feedback-error {
  border-top: 1px solid var(--line);
  padding: 16px 0;
  scroll-margin-top: 10px;
}
.error-label {
  color: #b26d50;
  font-size: 10px;
  font-weight: 600;
  margin-bottom: 8px;
}
.feedback-error p {
  margin: 0;
  color: #718074;
  font-size: 12.5px;
  line-height: 1.55;
}
#progressView {
  padding: 0 23px 25px;
  background: linear-gradient(180deg, #fff 0, #fbfcf8 100%);
}
.progress-intro {
  padding: 25px 0 20px;
}
.progress-kicker {
  color: var(--teal);
  font-size: 8px;
  font-weight: 650;
  letter-spacing: 1.35px;
  text-transform: uppercase;
}
.progress-intro h3 {
  margin: 10px 0 8px;
  font-family: "Manrope", var(--font);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.55px;
  line-height: 1.3;
}
.progress-intro p {
  margin: 0;
  color: #849188;
  font-size: 10.5px;
  line-height: 1.65;
  max-width: 330px;
}
.progress-overview {
  display: grid;
  grid-template-columns: 145px 1fr;
  align-items: center;
  gap: 18px;
  padding: 18px;
  border: 1px solid #dfe6df;
  border-radius: 13px;
  background: #fff;
  box-shadow: 0 8px 24px #2a403208;
}
.mastery-ring {
  --score: 0;
  width: 126px;
  height: 126px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: conic-gradient(var(--teal) calc(var(--score) * 1%), #e9eee8 0);
  position: relative;
}
.mastery-ring::before {
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: inherit;
  background: #fff;
}
.mastery-ring > div {
  position: relative;
  z-index: 1;
  text-align: center;
}
.mastery-ring strong {
  display: block;
  font-family: "Manrope", var(--font);
  font-size: 35px;
  line-height: 1;
  font-weight: 500;
  letter-spacing: -1.6px;
}
.mastery-ring span {
  display: block;
  margin-top: 8px;
  font-size: 7px;
  font-weight: 650;
  letter-spacing: 1.15px;
  color: #9aa59e;
}
.progress-metrics {
  display: flex;
  flex-direction: column;
}
.progress-metric {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 13px 0;
}
.progress-metric + .progress-metric {
  border-top: 1px solid #edf0eb;
}
.metric-icon {
  width: 31px;
  height: 31px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  border-radius: 9px;
  color: var(--teal);
  background: #eef5f0;
}
.metric-icon svg {
  width: 16px;
  height: 16px;
}
.progress-metric strong {
  display: block;
  font-family: "Manrope", var(--font);
  font-size: 19px;
  line-height: 1.1;
  font-weight: 550;
}
.progress-metric div span {
  color: #95a198;
  font-size: 9px;
}
.progress-reflection {
  display: flex;
  gap: 12px;
  margin-top: 18px;
  padding: 16px;
  border-radius: 11px;
  color: #586d60;
  background: #f0f5ee;
  border: 1px solid #e0e9df;
}
.progress-reflection > span {
  color: var(--teal);
  flex-shrink: 0;
}
.progress-reflection > span svg {
  width: 18px;
  height: 18px;
}
.progress-reflection small {
  display: block;
  font-size: 7.5px;
  font-weight: 650;
  letter-spacing: 1.1px;
  color: #71867a;
}
.progress-reflection p {
  margin: 7px 0 0;
  font-size: 10.5px;
  line-height: 1.65;
}
.insight-group {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fff;
}
.insight-heading {
  display: flex;
  gap: 11px;
  align-items: flex-start;
}
.insight-mark {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 5px;
  flex-shrink: 0;
  background: #6d9886;
  box-shadow: 0 0 0 4px #eef5f1;
}
.insight-group.grow .insight-mark {
  background: #c47d64;
  box-shadow: 0 0 0 4px #faf0eb;
}
.insight-group.notice .insight-mark {
  background: #b69a52;
  box-shadow: 0 0 0 4px #f7f3e9;
}
.insight-group.next {
  border-color: #d6e3dc;
  background: #f8faf6;
}
.insight-group.next .insight-mark {
  background: var(--nav-light);
  box-shadow: 0 0 0 4px #edf1f3;
}
.insight-heading h4 {
  margin: 0;
  font-size: 11px;
  font-weight: 650;
}
.insight-heading p {
  margin: 2px 0 0;
  color: #99a39c;
  font-size: 8.5px;
  line-height: 1.45;
}
.insight-group ul {
  list-style: none;
  padding: 5px 0 0 19px;
  margin: 0;
}
.insight-group li {
  position: relative;
  padding: 8px 0 0 13px;
  color: #75837a;
  font-size: 10px;
  line-height: 1.55;
}
.insight-group li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 4px;
  height: 1px;
  background: #a5b0a8;
}
.progress-empty {
  display: flex;
  gap: 13px;
  margin-top: 18px;
  padding: 19px 17px;
  border: 1px dashed #d4ddd4;
  border-radius: 11px;
  background: #fafbf7;
}
.progress-empty > span {
  color: var(--teal);
}
.progress-empty > span svg {
  width: 19px;
  height: 19px;
}
.progress-empty h4 {
  margin: 0 0 5px;
  font-size: 11px;
  font-weight: 600;
}
.progress-empty p {
  margin: 0;
  color: #909c93;
  font-size: 9.5px;
  line-height: 1.65;
}
.progress-analyze-button {
  width: 100%;
  margin-top: 18px;
  padding: 11px 14px;
  color: #fff;
  background: var(--nav);
}
.progress-analyze-button:hover {
  background: var(--nav-light);
}
.practice-history {
  margin-top: 28px;
}
.practice-history-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line);
}
.practice-history-heading span {
  color: #9aa49c;
  font-size: 7.5px;
  font-weight: 650;
  letter-spacing: 1.3px;
}
.practice-history-heading h4 {
  margin: 4px 0 0;
  font-family: "Manrope", var(--font);
  font-size: 15px;
  font-weight: 500;
}
.practice-history-heading small {
  color: #a2aba3;
  font-size: 8px;
}
.practice-timeline {
  position: relative;
  padding-top: 4px;
}
.practice-timeline::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 22px;
  bottom: 22px;
  width: 1px;
  background: #e4e9e3;
}
.history-row {
  position: relative;
  display: flex;
  gap: 12px;
  padding: 14px 0;
}
.history-dot {
  width: 31px;
  height: 31px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  z-index: 1;
  border: 1px solid #d9e5dc;
  border-radius: 50%;
  background: #f2f7f3;
  color: var(--teal);
}
.history-row.review .history-dot {
  border-color: #eadbd4;
  background: #faf1ed;
  color: #b56e55;
}
.history-dot svg {
  width: 14px;
  height: 14px;
}
.history-row time {
  color: #a0aaa2;
  font-size: 8px;
}
.history-row p {
  margin: 1px 0 2px;
  color: #56695d;
  font-size: 10.5px;
  font-weight: 550;
}
.history-row small {
  display: -webkit-box;
  overflow: hidden;
  color: #929d95;
  font-size: 8.5px;
  line-height: 1.45;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}
.text-editor {
  position: absolute;
  z-index: 10;
  min-width: 120px;
}
.text-editor textarea {
  width: 100%;
  min-height: 31px;
  resize: none;
  overflow: hidden;
  border: 0;
  border-bottom: 1px solid #8fb8ae;
  border-radius: 0;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  color: var(--ink);
  font-family: Georgia, serif;
  padding: 0 2px 3px;
  line-height: 1.5;
  box-shadow: none;
}
.text-editor textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 1px var(--teal);
}
dialog {
  border: 1px solid #dde5db;
  border-radius: 14px;
  padding: 30px;
  width: 430px;
  max-width: calc(100vw - 32px);
  color: var(--ink);
  box-shadow: 0 25px 100px #142f3330;
}
dialog::backdrop {
  background: #21384750;
  backdrop-filter: blur(3px);
}
.auth-dialog {
  width: min(960px, calc(100vw - 36px));
  max-width: 960px;
  padding: 0;
  overflow: hidden;
  border: 1px solid #d5dfd7;
  border-radius: 24px;
  background: #fbfcf8;
}
.auth-shell {
  display: grid;
  grid-template-columns: minmax(360px, 0.92fr) minmax(420px, 1.08fr);
  min-height: 610px;
}
.auth-story {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 42px 46px 34px;
  color: #f7f5eb;
  background:
    radial-gradient(circle at 73% 38%, #52766c55 0 1px, transparent 2px),
    radial-gradient(circle at 22% 78%, #7da39728 0 1px, transparent 2px),
    linear-gradient(145deg, #182f3e, #223f4b 56%, #315b57);
}
.auth-story::before,
.auth-story::after {
  content: "";
  position: absolute;
  border: 1px solid #d9e9df17;
  border-radius: 50%;
}
.auth-story::before {
  width: 320px;
  height: 320px;
  top: 112px;
  left: 56px;
}
.auth-story::after {
  width: 238px;
  height: 238px;
  top: 153px;
  left: 97px;
}
.auth-story-brand {
  position: relative;
  z-index: 2;
  font-family: "Manrope", var(--font);
  font-size: 25px;
  font-weight: 750;
  letter-spacing: -1.2px;
}
.auth-story-brand span {
  color: #8fc3ae;
}
.auth-story-copy {
  position: relative;
  z-index: 2;
  margin-top: 70px;
}
.auth-story-copy > span,
.auth-story-foot {
  color: #b9cfc5;
  font-size: 8px;
  font-weight: 650;
  letter-spacing: 1.65px;
}
.auth-story-copy h2 {
  margin: 13px 0 14px;
  font-family: "Manrope", var(--font);
  font-size: clamp(36px, 4vw, 53px);
  font-weight: 470;
  line-height: 1.02;
  letter-spacing: -2.8px;
}
.auth-story-copy p {
  max-width: 300px;
  margin: 0;
  color: #c7d4ce;
  font-size: 12px;
  line-height: 1.7;
}
.auth-paper-scene {
  position: relative;
  z-index: 2;
  width: 290px;
  height: 190px;
  margin: 31px auto 0;
  transform: rotate(-3deg);
}
.auth-paper-shadow,
.auth-paper {
  position: absolute;
  inset: 12px 10px 0 14px;
  border-radius: 7px;
}
.auth-paper-shadow {
  transform: rotate(6deg) translate(14px, 5px);
  background: #10283380;
}
.auth-paper {
  padding: 19px 22px;
  color: #29434a;
  background-color: #fffefa;
  background-image:
    linear-gradient(#dfe8df99 1px, transparent 1px),
    linear-gradient(90deg, #dfe8df99 1px, transparent 1px);
  background-size: 23px 23px;
  box-shadow: 0 22px 50px #10222b65;
}
.auth-paper span,
.auth-paper em {
  display: block;
  color: #789087;
  font-size: 7px;
  font-style: normal;
  font-weight: 650;
  letter-spacing: 1px;
}
.auth-paper strong {
  display: block;
  margin: 17px 0 11px;
  font-family: Georgia, serif;
  font-size: 28px;
  font-weight: 400;
}
.auth-paper i {
  display: block;
  width: 69%;
  height: 1px;
  margin: 9px 0;
  background: #54796e75;
}
.auth-paper i:nth-of-type(2) { width: 52%; }
.auth-paper i:nth-of-type(3) { width: 61%; }
.auth-paper em { margin-top: 14px; color: #4e8073; }
.auth-nudge {
  position: absolute;
  right: -18px;
  bottom: 8px;
  padding: 9px 12px;
  border: 1px solid #d8e7de;
  border-radius: 8px;
  color: #406a61;
  background: #f8fbf7;
  font-size: 8px;
  font-weight: 650;
  box-shadow: 0 12px 28px #0d252e40;
}
.auth-story-foot {
  position: relative;
  z-index: 2;
  margin: auto 0 0;
}
.auth-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 55px clamp(42px, 6vw, 76px) 35px;
  background: #fbfcf8;
}
.auth-panel form {
  width: 100%;
  max-width: 390px;
  margin: auto;
}
.auth-heading {
  margin-bottom: 25px;
}
.auth-heading .eyebrow {
  color: #72948a;
}
.auth-heading h2 {
  margin-top: 9px;
  font-size: 34px;
  letter-spacing: -1.5px;
}
.auth-heading p {
  margin: 8px 0 0;
  color: #84928b;
  font-size: 11px;
  line-height: 1.5;
}
.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-bottom: 24px;
  padding: 4px;
  border-radius: 9px;
  background: #f0f3ee;
}
.auth-tabs button {
  min-height: 34px;
  border-radius: 6px;
  color: #78877f;
  font-size: 10px;
  font-weight: 650;
}
.auth-tabs button.active {
  background: #fff;
  color: var(--teal);
  box-shadow: 0 2px 8px #243c5014;
}
.auth-dialog label {
  display: block;
  margin: 15px 0 7px;
  color: #607269;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
}
.auth-dialog input {
  width: 100%;
  min-height: 47px;
  padding: 0 15px;
  border-color: #d9e1da;
  border-radius: 10px;
  background: #fff;
  font-size: 11px;
}
.auth-dialog input:focus {
  border-color: #6b9b8f;
  box-shadow: 0 0 0 3px #6b9b8f16;
}
.auth-message {
  min-height: 20px;
  margin: 12px 0 2px;
  color: #a65f49;
  font-size: 10px;
}
.auth-submit {
  width: 100%;
  justify-content: center;
  margin-top: 10px;
  min-height: 46px;
  border-radius: 10px;
  gap: 10px;
}
.auth-link {
  display: block;
  margin: 12px auto 0;
  color: #75867d;
  font-size: 10px;
}
.auth-link:hover {
  color: var(--teal);
}
.account-card {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 15px;
  border: 1px solid #d8e4dc;
  border-radius: 10px;
  background: #f8fbf8;
}
.account-card > span {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #e4f0eb;
  color: var(--teal);
}
.account-card svg {
  width: 19px;
  height: 19px;
}
.account-card strong,
.account-card small {
  display: block;
}
.account-card strong {
  color: var(--ink);
  font-size: 12px;
}
.account-card small {
  margin-top: 3px;
  color: #829087;
  font-size: 9px;
}
.auth-copy {
  margin: 18px 2px;
  color: #74837b;
  font-size: 11px;
  line-height: 1.65;
}
.auth-privacy {
  margin: auto auto 0;
  color: #9aa69f;
  font-size: 8.5px;
}
@media (max-width: 760px) {
  .auth-dialog {
    width: min(470px, calc(100vw - 22px));
    border-radius: 18px;
  }
  .auth-shell { display: block; min-height: 0; }
  .auth-story { display: none; }
  .auth-panel { min-height: min(650px, calc(100vh - 24px)); padding: 38px 28px 24px; }
}
.button.danger {
  margin-right: auto;
  color: #a85843;
}
.button.danger:hover {
  background: #fff0ea;
}
.dialog-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 27px;
}
.dialog-heading h2 {
  font-family: "Manrope", var(--font);
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -0.8px;
  margin: 8px 0 0;
}
dialog label {
  display: block;
  font-size: 11px;
  color: #778a79;
  margin: 20px 0 9px;
}
dialog input,
dialog select {
  width: 100%;
  border: 1px solid #d8e1d6;
  border-radius: 6px;
  background: #fafbf7;
  padding: 11px 12px;
  font-size: 13px;
  color: var(--ink);
}
.cover-colors {
  display: flex;
  gap: 13px;
  padding: 6px 3px;
}
.cover-color {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--cover);
}
.cover-color.active {
  outline: 1px solid var(--cover);
  outline-offset: 4px;
}
.dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 31px;
}
.toast {
  position: fixed;
  bottom: 25px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--nav);
  color: #fff;
  padding: 12px 22px;
  font-size: 12px;
  border-radius: 8px;
  box-shadow: 0 5px 25px #0002;
  z-index: 100;
  max-width: 90vw;
}
.loading-dot {
  height: 6px;
  width: 6px;
  border-radius: 50%;
  background: var(--teal);
  animation: pulse 1s infinite;
}
@keyframes pulse {
  50% {
    opacity: 0.25;
  }
}
#textSize {
  width: 63px;
  border: 0;
  background: #eef2e9;
  font-size: 10px;
  padding: 7px;
  color: #657662;
  border-radius: 4px;
}
@media (min-width: 1600px) {
  .library {
    padding-top: 70px;
  }
  .book-cover,
  .new-book {
    height: 270px;
  }
  .library-heading {
    padding-top: 48px;
    padding-bottom: 60px;
  }
  .library-footer {
    margin-top: 70px;
  }
}
@media (max-width: 1100px) {
  .save-status {
    display: none;
  }
  .toolbar {
    gap: 5px;
    padding: 6px;
  }
  .tool {
    width: 33px;
  }
  .color-options {
    gap: 9px;
    padding: 0 5px;
  }
  .ink-color {
    width: 16px;
    height: 16px;
  }
  .toolbar .icon-button {
    width: 29px;
  }
  .width-button {
    width: 22px;
  }
  .tutor-panel {
    width: 290px;
  }
  .tutor-panel.progress-mode {
    width: 370px;
  }
  .pages-rail {
    width: 139px;
    padding: 23px 14px;
  }
  .thumb-sheet {
    width: 95px;
    height: 133px;
  }
  .library {
    padding: 40px 35px 0;
  }
  .notebook-grid {
    gap: 22px;
  }
  .book-cover,
  .new-book {
    height: 215px;
  }
  .cover-content {
    padding: 25px 24px;
  }
  .cover-title {
    font-size: 22px;
  }
  .library h1 {
    font-size: 43px;
  }
  .app-caption {
    display: none;
  }
}
@media (max-width: 850px) {
  .tutor-panel {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    z-index: 20;
    width: 310px;
    box-shadow: -10px 0 30px #243c5012;
  }
  .tutor-panel.progress-mode {
    width: min(410px, 100%);
  }
  .document-bar {
    padding: 0 12px;
  }
  .document-actions {
    gap: 5px;
  }
  .document-info {
    gap: 5px;
  }
  .document-actions .quiet span {
    display: none;
  }
  .notebook-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .library-sort {
    display: none;
  }
  .library-heading {
    gap: 25px;
  }
  .library h1 {
    font-size: 38px;
  }
  .library-heading p {
    max-width: 260px;
    line-height: 1.6;
  }
  .library-footer {
    margin-top: 35px;
  }
  .footer-label {
    display: none;
  }
  .book-cover,
  .new-book {
    height: 220px;
  }
  .tools-dock {
    padding: 15px 8px 9px;
  }
  .toolbar {
    overflow-x: auto;
  }
  .tool-set {
    gap: 0;
  }
}
@media (max-width: 600px) {
  .tutor-panel,
  .tutor-panel.progress-mode {
    width: 100%;
  }
  .progress-overview {
    grid-template-columns: 124px 1fr;
    padding: 15px;
  }
  .mastery-ring {
    width: 108px;
    height: 108px;
  }
  .mastery-ring strong {
    font-size: 30px;
  }
  .tabbar {
    padding: 0 12px;
    gap: 6px;
    height: 51px;
  }
  .brand {
    font-size: 23px;
    padding-right: 9px;
    gap: 5px;
  }
  .brand-mark svg {
    width: 21px;
  }
  .notebook-tab {
    min-width: 105px;
    padding: 0 10px;
    gap: 8px;
    height: 39px;
  }
  .notebook-tab > button:first-child {
    font-size: 10px;
  }
  .editor {
    height: calc(100dvh - 51px);
  }
  .document-bar {
    height: 55px;
  }
  .document-name {
    font-size: 11px;
  }
  .document-name span {
    max-width: 100px;
  }
  .document-actions .button {
    font-size: 10px;
    padding: 7px 9px;
    gap: 4px;
  }
  .document-actions .divider,
  .document-actions .quiet {
    display: none;
  }
  .pages-rail {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 15;
    width: 145px;
    box-shadow: 5px 0 20px #243c5012;
  }
  .toolbar {
    max-width: 100%;
    gap: 5px;
    justify-content: flex-start;
  }
  .toolbar .divider {
    margin: 0 2px;
  }
  .tool {
    width: 32px;
  }
  .toolbar .width-options {
    display: none;
  }
  .color-options {
    gap: 10px;
    padding: 0 6px;
  }
  .color-options .ink-color:nth-child(n + 4) {
    display: none;
  }
  .toolbar .icon-button {
    width: 26px;
  }
  .toolbar svg {
    width: 19px;
    height: 19px;
  }
  .tool-hint {
    font-size: 9px;
  }
  .workspace-bottom {
    padding: 0 13px;
    gap: 10px;
  }
  .workspace-bottom > span {
    font-size: 8px;
  }
  .subtle-button {
    font-size: 9px;
  }
  .library {
    padding: 29px 22px 0;
  }
  .library-heading {
    display: block;
    padding: 29px 0;
  }
  .library h1 {
    font-size: 36px;
  }
  .library-heading p {
    max-width: 100%;
    font-size: 12px;
  }
  .library-heading .button {
    margin-top: 23px;
  }
  .local-note {
    font-size: 9px;
  }
  .local-note svg {
    width: 12px;
  }
  .eyebrow {
    font-size: 8px;
  }
  .notebook-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 23px 17px;
  }
  .book-cover,
  .new-book {
    height: 208px;
  }
  .cover-title {
    font-size: 21px;
  }
  .cover-content {
    padding: 23px;
  }
  .library-footer {
    padding: 25px 0;
  }
  .library-section {
    padding-top: 22px;
  }
  .library-section p {
    font-size: 10px;
  }
  .library-footer p {
    font-size: 10px;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}
.clear-selection {
  position: absolute;
  right: -13px;
  top: -13px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--teal);
  color: white;
  display: grid;
  place-items: center;
  pointer-events: auto;
}
.clear-selection svg {
  width: 15px;
  height: 15px;
}
.selection-actions {
  position: absolute;
  right: 8px;
  bottom: -48px;
  display: flex;
  gap: 3px;
  padding: 4px;
  border: 1px solid #d8e1d9;
  border-radius: 9px;
  background: #fff;
  box-shadow: 0 8px 24px #243c5024;
  pointer-events: auto;
  white-space: nowrap;
}
.selection.actions-above .selection-actions {
  top: -49px;
  bottom: auto;
}
.selection-action {
  min-height: 31px;
  padding: 0 11px;
  border-radius: 6px;
  color: #607269;
  font-size: 10px;
  font-weight: 600;
}
.selection-action:hover {
  background: #eef3ed;
}
.selection-action.primary-action {
  color: #fff;
  background: var(--teal);
}
.selection-action.primary-action:hover {
  background: #2b6c64;
}
.selection-action:disabled {
  opacity: 0.45;
}
.selection-hint-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  width: 218px;
  padding: 8px;
  border: 1px solid #d7e2dc;
  border-radius: 10px;
  background: #fffefa;
  box-shadow: 0 12px 30px #243c5028;
  white-space: normal;
}
.selection.actions-above .selection-hint-menu {
  top: auto;
  bottom: calc(100% + 8px);
}
.selection-hint-menu > span {
  display: block;
  padding: 3px 6px 7px;
  color: #8b9891;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 1px;
}
.selection-hint-menu button {
  width: 100%;
  padding: 8px 9px;
  border-radius: 6px;
  color: #4e655c;
  font-size: 10px;
  font-weight: 550;
  text-align: left;
}
.selection-hint-menu button:hover,
.selection-hint-menu button:focus-visible {
  background: #eaf3ef;
  color: var(--teal);
  outline: none;
}